Fire-alarm.



l. T. NELSON.

FIRE ALARM. APPLICATION YFIL-ED DEC. :5. m5.

Patented July 11, 1916.

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JAMES T. NELSON, OF BELTON, SOUTH CAROLINA, ASSIGNOIB, OF ONE-HALF 'lO GEORGE H. CLEMENT, OF BELTON, SOUTH CAROLINA.

FIRE-ALARM.

Specification of Letters Patent.

Patented July 11, 1916.

Application filed December 15, 1915. Serial No. 66,987.

To all whom it may concern:

Be it known that 1, JAMES T. NnLsoN, a citizen of the United States, residing at Belton, in the county of Anderson and State of South Carolina, have invented certain new and useful Improvements in Fire- Alarms; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements in fire alarms and the principal object of the invention is to provide a combined fire alarm and annunciator to indicate in what section of a building the fire is located.

Another object of the invention is to provide a device which consists of a plurality of weights adapted to actuate the lever to control an electric circuit for operating the signal and also to illuminate the device so that the position of the fire may be readily determined.

With these and other objects in view, the invention consists in the novel combination and arrangement of parts which will be fully set forth in the following specification and accompanying drawings, in which Figure 1 is a front view in elevation of a fire alarm constructed in accordance with this invention showing a portion thereof in section, and illustrating the device in its operated position, the dotted lines illustrating the device in normal or inoperative position, and Fig. 2 is a top plan view of the box containing the weights. v

Referring to the drawings, the numeral 1 designates as an entirety the box of the device comprising the front wall 2, rear wall 3, the side walls 1 which are arranged in parallel relation and the top and bottom walls 5. The top and bottom walls are arraged in spaced parallel relation at opposite pass. These cords are connected at one end to the weights and are adapted to normally hold said weights suspended. The opposite ends of the cords are attached in its respective room and it will be seen that the cords will be held taut due to the weight imposed on the weighted ends thereof and in case the cord burns through at any point it will be seen that the weights will be released and permitted to drop.

Pivoted to the outer end of the bracket 7 is a lever 10 provided with the offset downward extension 11 which in turn is provided with the angularly extending weight engaging arm 12, which arm normally extends parallel to the bottom wall 5 and in such a position that the dropping weights will engage the arm and cause the same to swing the lever 10 on its pivot. The upper end of the lever is provided with the inwardly curved pressing finger 13 which is adapted to engage the push button 14: so as to complete the electric circuit through the bell 15 as soon as the arm 12 is moved into The lower end of the weights are providedwith suitable characters 16 which are adapted to designate the room to which the fi'exible member connected to said weights leads. It will thus be seen that as soon as the flexible member burns through the characters will become visible, thereby indicating that the fire is in that particular room. It is tobe understood that these characters may be in any desired form such as letters to give the name of the room or may be numerals to indicate the number of the room without in any way departing from the spirit and scope of the invention.

In order that the characters 16 may be visible at night, there is provided a suitable illuminating device 17 which is supported near the lower end of the casing 1 so that the light rays will fall on the characters and this illuminating device has attached thereto a suitable cord or other fiexible member 18 which leads to the forward end of the finger 13 so that upon movement of the lever the finger will move inwardly thereby exerting pull on the fiexible member 18 and causing the illuminating device to be thrown into ular part of the building, the respective cord will be burned through, thereby allowing its respective weight to drop on to the lever or arm 12, thus moving the lever so that the finger 13 engages the push button 1 1 and closes the circuit through the bell 15 simultaneously with the movement of the lever. It will be evident that the illuminating device 17 will be operated so that the light rays therefrom will be shed on the characters 16 on the lower ends of the weights thereby allowing the characters to be easily seen in the darkness.

While in the foregoing there has been shown and described the preferred embodiment of this invention, it is to be understood that such changes may be made in the combination and arrangement of parts as will fall within the spirit and scope of the appended claim.

What is claimed is In a fire alarm and annunciator, a casing, weights slidable through the casing, flexible members connected to the weights and leading to various parts of the building the weights being provided with designating characters to indicate the location of the building, said characters being positioned at the lower terminals of the weights, the burning of the flexible members being adapted to allow the weights to fall so that the lower ends will be exposed, thereby allowing the designating characters to be seen, a lever pivoted to the side of the casing, an arm at the lower end of the lever adapted to extend beneath the weights to be engaged thereby when the weights drop, a finger at 'the upper end of the lever adapted to close a circuit through an alarm sounding device, an illuminating means adapted to direct light rays against the lower ends of the Weights to render the characters thereon readily distinguishable in the dark and means connected to the finger to simultaneously operate the illuminating means upon the dropping of the weights.

In testimony whereof I afiix my signature in presence of two witnesses.

JAMES T. NELSON. Witnesses:

JOHN A. HORTON, C. M. HORTON,

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. G. 

